Commit Message

Since gcc silently accepts any -Wno-* flag on purpose, it is ineffective
to check for support of a warning flag using the negative form. Instead
always use the positive form when running the check (but keep the
original spelling for the result).
(Requires regeneration of fixincludes/configure gcc/configure
libcpp/configure libdecnumber/configure libiberty/configure
lto-plugin/configure)
Andreas.
2011-12-18 Andreas Schwab <schwab@linux-m68k.org>
* warnings.m4 (ACX_PROG_CC_WARNING_OPTS)
(ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Run the test without the
no- prefix.